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KMID : 0604520080340010051
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Journal of the Society of Cosmetic Scientists of Korea
2008 Volume.34 No. 1 p.51 ~ p.55
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Simple Method in Trace Analysis of Phthalates in Cosmetics : Analytical Conditions and Skills for Better Results
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Kim Min-Kee
Jung Hye-Jin
Chang Ih-Seop
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Abstract
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Although phthalates aren’t used as an cosmetic ingredient, some cosmetics especially nail lacquer, hair spray, and perfume still have phthalates. This is mainly caused by contamination and carryover during manufacturing process, so analysis of phthalates in those cosmetics has became a very important thing for quality-assurance(Q.A). The main phthalates under debate are diethyl phthalate(DEP), dibutyl phthalate(DBP), and bis(2-ethylhexyl) phthalate (DEHP) in domestic market. Gas chromatography-mass spectrometry(GC-MS) coupled with solvent extraction and concentration has been used for ppm level and sub ppm level analysis of phthalates. It requires much time and cost to use mass spectrometric detector and to prepare the test solution. Moreover analysis of phthalates at low concentrations is difficult because of contamination which results in wrong analytical results. In the present study, we showed a simple method using gas chromatography-flame ionization detector(GC-FID) which has fast analysis time, minimum use of solvent, reduced sample preparation steps for minimizing contamination and quantitative range of in products. Consequently, this method will be proper for Q.A analysis in related companies.
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KEYWORD
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phthalates, dibutyl phthalate, bis(2-ethylhexyl) phthalate, cosmetic, GC-FID
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